Finding the Fourth Proportional to 1,349.25, 1,861.10 and 955.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.25 : 1,861.10 = 955.59 : x
2. Step 2: Convert to fraction form
   1,349.25/1,861.10 = 955.59/x
3. Step 3: Cross multiply
   1,349.25x = 1,861.10 × 955.59
4. Step 4: Simplify right side
   1,349.25x = 1,778,443.77
5. Step 5: Solve for x
   x = 1,778,443.77/1,349.25
6. Step 6: Final answer
   x = 1,318.10